The Sanford Underground Lab is preparing to receive and store portions of a needed 1.4 million liters of xenon gas over the next couple of years. The Rapid City Journal reports that the xenon is needed to perform the facility's next experiment named LUX-ZEPLIN. The experiment, which is scheduled to take place in 2018, will be designed to detect black matter particles which is possible due to the lab's location one mile underground. Further discoveries on dark matter could help to unlock new research into our galaxy and its formation.
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For more information on the lab and its current research as well as its past history as the Homestake Gold mine, check out this Knowledge Network resource page.